MERCEDES-BENZ ML430 1997 Complete Repair Manual

Shifting "N" To "D" (1st Gear), Function

See SHIFTING N TO D (1ST GEAR), FUNCTION
.
Function Of Shift From 1 To 2

See SHIFT FROM 1 TO 2, FUNCTION
.
Limp-home Mode, Function

See LIMP
-HOME MODE, FUNCTION.
Operating Pressure, Function

See OPERATING PRESSURE, FUNCTION
.
Lubricating Pressure, Function

See LUBRICATING PRESSURE, FUNCTION
.
Shift Pressure, Function

See SHIFT PRESSURE, FUNCTION
.
Modulating Pressure, Function

See MODULATING PRESSURE, FUNCTION
.
Shift Valve Pressure, Function

See SHIFT VALVE PRESSURE, FUNCTION
.
Manual Drive Mode Selection, Function

See MANUAL DRIVE MODE SELECTION, FUNCTION
.
Oil Level Control, Function

See OIL LEVEL CONTROL, FUNCTION
.
Torque Converter Lockup Clutch Control, Function

See FUNCTION OF TORQUE CONVERTER LOCKUP CLUTCH CONTROL
.
Torque Converter Lockup Clutch Control Pressure, Function

See TORQUE CONVERTER LOCKUP CLUTCH CONTROL PRESSURE, FUNCTION
.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 22 © 2006 Mitchell Repair Information Company, LLC.

Kick-Down, Function

See KICK
-DOWN FUNCTION (UP TO 5/31/02).
Hydropneumatic Transmission Control, Function

See HYDROPNEUMATIC TRANSMISSION CONTROL, FUNCTION
.
Shift-Lock, Function

See SHIFT
-LOCK FUNCTION.
Function Of Locking Of Selector Lever Position "P"

See FUNCTION OF LOCKING OF SELECTOR LEVER POSITION "P"
.
Ignition Lock Locking, Function

See IGNITION LOCK INTERLOCK
.
Function Of Shift Lock Override

See FUNCTION OF SHIFT LOCK OVERRIDE
.
Survey Of System Components, Automatic Transmission, Location/Task/Design/Function

See SURVEY OF SYSTEM COMPONENTS, AUTOMATIC TRANSMISSION,
LOCATION/TASK/DESIGN/FUNCTION.
Shift From 1 To 2, Function

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 23 © 2006 Mitchell Repair Information Company, LLC.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 24 © 2006 Mitchell Repair Information Company, LLC.

Fig. 16: Shift From 1 To 2, Function (1st Gear Engaged)
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 25 © 2006 Mitchell Repair Information Company, LLC.

Fig. 17: Shift From 1 To 2, Function (Shift Phase)
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 26 © 2006 Mitchell Repair Information Company, LLC.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 27 © 2006 Mitchell Repair Information Company, LLC.

Fig. 18: Shift From 1 To 2, Function (Second Gear Engaged)
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Aim
Engage front multiple-disc clutch (K1), disengage front multiple-disc brake (B1).
Operation
1st Gear Engaged See Fig. 16.
The end face of the 1-2/4-5 command valve (31a) is kept depressurized via the 1-2 and 4-5 shift solenoid valve
(Y3/6y3). Via the 1-2/4-5 holding pressure shift valve (28a), working pressure (p-A) is applied to the front
mutiple-disc clutch (K1) is depressurized.
Shift Phase
See Fig. 17
Via the 1-2 and 4-5 shift solenoid valve (Y3/6y3), the shift valve pressure (p-SV) is directed onto the end face
of the command valve 1-2/4-5 (31a). The 1-2/4-5 command valve (31a) is displaced and the shift pressure (p-S)
coming from the 1-2/4-5 shift pressure shift valve (29a) via the 1-2/4-5 command valve (31a) is directed to the
front multiple-disc clutch (K1). At the same time the front multiple-disc brake (B1) is subjected to overlap
pressure from the 1-2/4-5 overlap regulating valve (30a).
The B1 pressure acting on the end face of the 1-2/4-5 shift pressure shift valve (29a) is superseded by the
working pressure (p-A). The increasing shift pressure (p-S) at the front multiple-disc clutch (K1) acts on the
annular area of the 1-2/4-5 overlap regulating valve (30a). With an appropriate pressure level at the 1-2/4-5
holding pressure shift valve (28a) this valve switches over.
2nd Gear Engaged
See Fig. 18.
After the gear change is complete, the pressure on the end face of the 12-/4-5 command valve (31a) is reduced
via the 1-2 and 4-5 shift solenoid valve (Y3/6y3) and the command value is pushed back into its original
position. Via the 1-2/4-5 holding pressure shift valve (28a) working pressure (p-A) now reaches the front
multiple-disc clutch (K1) via the 1-2/4-5 command valve (31a).
The front multiple-disc brake (B1) is disengaged (depressurized). The spring in the 1-2/4-5 shift pressure shift
valve (29a) pushes this into its original position.
Continuation
Operating Pressure, Function

See OPERATING PRESSURE, FUNCTION
.
Shift Pressure, Function

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 28 © 2006 Mitchell Repair Information Company, LLC.

See SHIFT PRESSURE, FUNCTION
.
Modulating Pressure, Function

See MODULATING PRESSURE, FUNCTION
.
Shift Valve Pressure, Function

See SHIFT VALVE PRESSURE, FUNCTION
.
Lubricating Pressure, Function

See LUBRICATING PRESSURE, FUNCTION
.
Regulating Valve Pressure, Function

See REGULATING VALVE PRESSURE, FUNCTION
.
AUTOMATIC TRANSMISSION, CONTENTS, FUNCTION DESCRIPTION
Automatic Transmission, Function

See AUTOMATIC TRANSMISSION, FUNCTION
.
Automatic Transmission, Location Of Mechanical Parts

See AUTOMATIC TRANSMISSION, LOCATION OF MECHANICAL PARTS
.
Automatic Transmission, Location Of Electric/Electronic Components

See AUTOMATIC TRANSMISSION, LOCATION OF ELECTRIC/ELECTRONIC
COMPONENTS.
Automatic Transmission, Location Of Hydraulic Components

See AUTOMATIC TRANSMISSION, POSITION OF HYDRAULIC COMPONENTS

Automatic Transmission, Location Of Components, Floor Shift

See AUTOMATIC TRANSMISSION, LOCATION OF COMPONENTS, FLOOR SHIFT
.
Automatic Transmission, Selector Lever Positions

See AUTOMATIC TRANSMISSION, SELECTOR LEVER POSITIONS
. NOTE: Transmission with touch shift.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 29 © 2006 Mitchell Repair Information Company, LLC.

Automatic Transmission, Gear Ratios

See AUTOMATIC TRANSMISSION, GEAR RATIOS
.
Power Transmission, Function

See AUTOMATIC TRANSMISSION, POWER TRANSMISSION, FUNCTION
.
Power Flow In 1st Gear, Function

See POWER FLOW IN 1ST GEAR, FUNCTION
.
Power Flow In 2nd Gear, Function

See POWER FLOW IN 2ND GEAR FUNCTION
.
Power Flow In 3rd Gear, Function

See POWER FLOW IN 3RD GEAR FUNCTION
.
Power Flow In 4th Gear, Function

See POWER FLOW IN 4TH GEAR FUNCTION
.
Power Flow In 5th Gear, Function

See POWER FLOW IN 5TH GEAR FUNCTION
.
Power Flow In Reverse, Function

See POWER FLOW IN REVERSE, FUNCTION
.
Gearshift System, Function

See FUNCTION OF GEAR SHIFT
.
Function Of Gear Change

See FUNCTION OF GEAR CHANGE
.
Shifting N To D (1st Gear), Function

See SHIFTING N TO D (1ST GEAR), FUNCTION
.
Shift From 1 to 2, Function

See SHIFT FROM 1 TO 2, FUNCTION
.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 30 © 2006 Mitchell Repair Information Company, LLC.

Limp-Home Mode, Function

See LIMP
-HOME MODE, FUNCTION.
Operating Pressure, Function

See OPERATING PRESSURE, FUNCTION
.
Lubricating Pressure, Function

See LUBRICATING PRESSURE, FUNCTION
.
Shift Pressure, Function

See SHIFT PRESSURE, FUNCTION
.
Modulating Pressure, Function

See MODULATING PRESSURE, FUNCTION
.
Regulating Valve Pressure, Function

See REGULATING VALVE PRESSURE, FUNCTION
.
Shift Valve Pressure, Function

See SHIFT VALVE PRESSURE, FUNCTION
.
Hydropneumatic Transmission Control, Function

See HYDROPNEUMATIC TRANSMISSION CONTROL, FUNCTION
.
Manual Drive Mode Selection, Function

See MANUAL DRIVE MODE SELECTION, FUNCTION
.
Oil Level Control

See OIL LEVEL CONTROL, FUNCTION
.
Function Of Torque Converter Lockup Clutch Control

See FUNCTION OF TORQUE CONVERTER LOCKUP CLUTCH CONTROL
.
Torque Converter Lockup Clutch Control Pressure, Function

See TORQUE CONVERTER LOCKUP CLUTCH CONTROL PRESSURE, FUNCTION

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 31 © 2006 Mitchell Repair Information Company, LLC.